Journal bearing



J. FJOCONNOR JOURNAL BEARING Feb. 17, 1931.

original Filed oct. 1, 1927 e w n, Q c j 1 y M M 4 a Patented Feb. 17, 1931 UNITED STATES PATENT OFFICE JOHN F. OCONNOR, orv CHICAGO, ILLTivors, Assieivon 'ro vv. H. Minna, rnc., or'

' CHICAGO, ILLrivors, A CORPORATION OEDELAWARE JOURNAL BEARING Application filed October 1, 1927, Serial No. 223,273. Renewed March 2'?, 1930.

This invention relates to improvements in journal bearings.

An object of the invention is to provide a ball bearing arrangement, more particularly "5 adapted for use in connection with the journal boXes and journals of railwaycars, and wherein the journal and journal box race members are provided in vertically overlapping relation, and the side faces of. the 'race members provided with concentric annular grooves for the reception of concentric annular series of balls, whereby each ball ot each series is disposed partially in the groove of one and partially in the groove of another ot adjacent race members, so that all ot' the balls at all times are under load, and a compact and ei'iicient arrangement is produced. Y I

Other and further objects of the invention 2O Ywill more fully and clearly appear from. the

description and claims hereinafter following. I

In the drawings forming a part of this specification, Figure 1 is aside elevational View of a fragment of a railway car truck,

showing a truck pedestal member and a ournal box, embodying the invention, mounted in said pedestal member. f Figure 2 is a transverse vertical sectional view corresponding substantially to the line 2-2 of Figure 1. And Figure 3 is a vertical sectional view, corresponding substantially to'the line 3-3 ot Figure 2. j

As shown in the drawing, 1 0 represents a fragment of the body portion of a car truck, and 11 represents a common type ot pedestal member mounted thereon, having the usual spaced jaws between which is slidably disposed a journal box 12 embodying the invention. The numeral 13 indicates one end of an equalizer bar which bears uponV the top of the journal boX 12 and transmits the load from the frame of the' truck to the top of the journal box, which in turn transmits the load to the axle.

The invention broadlycontemplates the provision ot a journal box A, journal race members B, journal boX race member C, ball bearings D, andcap E. n

The journal box A comprises side, top,

when the sleeve is in position thereon.

bottom and rear walls, and is ot hollow construction having a centrally disposed annular recess 14 adapted Jfor the reception of the journal 15. The journal 15 projects through an aperture 16 in the rear wall of the journal-box, and the edge of the rear wall deiinl ing the aperture 16 is provided with a grooveV vlit upon the opposite sides of the pedestal jaws to provide guides in the `usual manner, the journal bon A being retained in its position between the jaws ot the pedestal member by the usual strap 22.

The journal 15- is formed to provide an annular shoulder 23, a cylindrical portion 24C, and a reduced threaded end portion 25. mounted upon the journal 15 are the journal race members B. These race members are preferably two in number and are best shown in Figure .2, being indicated by the numerals 26 and 27. The race member 27 is in the form ot a sleeve 28 litted upon the cylindrical portion 211 ot the journal, and at its inner end is provided with a relatively heavy lange 29, the inner surface of which bears against the shoulder 23 of the journal The outer portion of the journal 15 is provided with a longitudinally extending groove 30 adapted for thereception ot a key as hereinafter described. The outer extremity of the sleeve 28 is provided with threads 31 as shown. The sleeve 28 is held in position on 'the journal by means ot a nut 32 threaded on the end portion 25, said nut being locked in position by means of a pin 33. The race member 26 comprises a cylindrical portion 34:7provided with a slot 35 for reception-ot the key 36 which enters the slot in the sleeve 28, to bring about movement ot the member 26 in unison with the sleeve 28, the member 26 heilig held in position by means ot the nuts 37 screwed onto the threads 31 of the sleeve 28.` rEhe member 2G is provided With an annular vertically extending flange 38 corresponding to the flange 29 of' the member 27. The flanges 38 and 29 are adapted to bear against the ball bearings D and journal box race member C in a manner Whichivill now be described.

The journal box race member C isprovid ed With an annular portion 39 which is nonrotatably disposed in the annular recess le of the journal box A, and isprovided'ivith a relatively heavv inwardly disposed central flange Ll() which projects inwardly between the flanges and 29 of the member-S26 and 27, and iii spaced relation with reference thereto', the inner periphery of the flange 40 definingan annular opening of somewhat greaterldiameterthan the sleeve Q8, so that ne inner periphery is spaced from said leere. The opposite side faces of the flange O are eachjgirovided with a pair ofconcenrit-ally disposed, 'semi-circular grooves l.ll and 42. rlie inner surface of the flange 3S of the member 26 is provided with corresponding grooves 43, While the inner surface of the fiangc 29 is provided With corresponding grooves 4e, the grooves being arranged for the reception of the ball bearings D.

The ball bearings I) are arranged in tivo Y, 'concentric vertical'series disposed in tno grooves, Ativo annularseries being arranged ou one side of the flange 40, and ytivo Aupon the opposite side of said flange, and each ball o each series is disposed partly in the groove of one of the flanges'Q and 27, and partly in the corresponding groove ofl the flange 40,

the balls in this Way being disposed in vertical shear, so that upon relative movement between the race members I3 and C. the d Will be transmitted to all of the balls of all series.

The balls'D are held in position'by suitable retainers indicated at each of which in the formA of a flat circular plate provided with a plurality of spaced holes arranged in concentric circles, corresponding to the positions which tlieballs are to occupy, the retainers being carried by said balls.

The Vcap E is provided vfith a socket portion [t6 adapted to be disposed about the end of -the journal and associated parts and is provided with a flange 4-7 which is secured to the body portion of the journal box il by suitable bolts 48.

By the above described construction the load is transmitted tothe equalizer bar 13 which in turn imposes the load upon the top of the journal box A. The loa d is then transmitted to the race member C, to the balls D, and thence to the race members B. The imposition of the load in this manner eliects some slight relative movement of the mem'- bers B with reference to the member C, and due to the fact that the balls are disposed partly in the grooves of one member and partly in the grooves ofthe adjacent member, the balls are in vertical shear, and thus transmit the load to all of the balls, at the bottom and sides of' the journal, as Well as to those situated at the top which ordinarily directly suspend the full load, so that the load is uniformly distributed to all of the balls at all times.

Thilo I have herein shown and described ivhat'I consider the preferred manner ofi car rying out theinventioin the same is merely illustrative, and I contemplate all changes and modifications Which come Within the scope of the claims appendedhereto.

I claim:

l. In a construction of the character described, the combination With a journalbox provided with an opening and having a removable cover plate closing said opening, and a cooperating journal; of 1ace members carried by said ournal, the race members being spaced apart, one of said race members having a central opening therein and the oth er race member having a sleeve section surrounding the journal and extending through groove of the journal-box race member and partly Within the groove of one of the race members of the journal.

2.' AIn. a construction of the character described,rthe combination with a journal box .and journal; of journal ,race members comprising a sleeve mounted on said journal and having a disc-like upstanding flange thereon, the inner face of which is rprovided with an annular groove, `and a cooperating disc-like race :member having a central. opening through which said sleeve extends, said sleeve having an annular groove on the inner side thereof; a removable annular race `member Within said `journalbox and having a. ringlilte flange portion extending between lthe '1 disclilte member and the `disc-like flange of said first named'race members, said ring-like flange portion having annular grooves on opposite sidesthereof, registering` With said first named grooves, respectively; and annular series of balls interposed between the ring-like flange portion of said journal box race niember and each of said disclilte members and engaging Within the registering grooves,`

thereof; and means secured to said sleeve, enga ging the disc-like race member to hold said journal race members, ournal box race 1nember and balls assembled.

3. In a construction of the. character dei 'Ill ' opposed to said first named grooves; and concentric series of anti-friction elements interposed between said annular flange section and the disc-like sections and Working in said grooves, each of said anti-friction elements being disposed partly in one and partly in another of adjacent grooves. f

In Witness that I claim the :foregoing I have hereunto subscribed my name this 28th day v of September, 1927.

JOHN F. OCONNOR. 

